SODIUM-WATER REACTION AND THERMAL HYDRAULICS AT GAS-LIQUID INTERFACE: NUMERICAL INTERPRETATION OF EXPERIMENTAL OBSERVATIONSIn a sodium-cooled fast reactor development, coupled phenomena of thermal-hydraulics and chemical reaction of sodium and water vapor are of importance from the safety viewpoint. ...
A new computational methodology of sodium-water reaction (SWR), which occurs in a steam generator of a liquid-sodium-cooled fast reactor when a heat transfer tube in the steam generator fails, has been developed considering multidimensional and multiphysics thermal hydraulics. Two kinds of reaction ...
Pure sodium is extremely reactive, particularly with water to form explosive hydrogen gas and lye (NaOH); it can also react with water vapor in air or biological tissues. Mined and refined salts from terrestrial and aquatic sources contain sodium in the form of sodium chloride, sodium iodide,...
for the reaction: Balanced Symbol Equation for the reaction: Observations during the reaction: • A yellow precipitate of Sulphur starts to form and the reaction mixture goes cloudy. • A colourless‚ poisonous gas of sulphur dioxide is given off. •SodiumChloride (salt) and Water ...
After conjugation reaction, samples were cooled down immediately in ice-water bath and were stored at 4 °C. Samples were melted and homogenised before further characterisation. 2.3. Degree of conjugation The degree of conjugation between NaCas and MD was determined based on the change in the ...
Observations using a variety of osmotic challenges have established that hyperosmotic solutions of solutes that are excluded from cells cause more drinking than equiosmolar amounts of solutes that penetrate cells. Thus, the osmotic shift of water out of the cells caused by the excluded solutes provid...
This chapter discusses general models for the transport system of sodium, the effect of sodium and potassium on the requirement for magnesium and ATP, and the effect of potassium on phosphorylation and the inhibition of the enzyme system. It also discusses the observations on the (Na + K)-...
Similar observations were reported on a T-Nb2O5/Li cell by Dunn et al.30 The limitation to the rate capability should be attributed to an increase of the ohmic contribution and/or diffusion constrains upon an ultra-fast scan rate. The b-value of 0.56 close to 0.5 evidences the limitation...
Hydrogen ions derived from the dissociation of carbonic acid could then combine with NH3 to form NH4+ because the pKa for this reaction is 9.2. In the pH range of tubular fluid (6.0 to 7.0), only 0.1% to 1% of this buffer pair would exist as NH3. Thus the associated H+ is strongl...
and lower concentration inside the tubular epithelial cell. In addition, the SGLT2 contransporter is located adjacent to the renal Na+/hydrogen exchanger (NHE3), which is largely responsible for Na+reabsorption in the proximal tubule. SGLT2 inhibition appears to exert a cross-reaction with the ...